The physicians' and pharmacists' guide to your medicines /
United States Pharmacopeial Convention.

APA Citation

United States Pharmacopeial Convention. (1981). The physicians' and pharmacists' guide to your medicines. New York: Ballantine Books.

MLA Citation

United States Pharmacopeial Convention. The Physicians' And Pharmacists' Guide to Your Medicines. New York: Ballantine Books, 1981.

Warning: These citations may not always be complete (especially for serials).